No products

Free shipping starts at $300 ex GST.

$0.00 Shipping
$0.00 GST Tax
$0.00 Total

Cart Check out

Marine Acid Wash



For instruction on the correct use of this product please refer to the product label in the Download section.

Cyndan Marine Acid Wash is an advanced triple action formulation with phosphorylated ethoxylate. This low acid solution is a highly effective cleaner and antifouling solution for fibreglass hulls.

For larger quantities please contact our office.

More details

Cyndan Marine Acid Wash is an enhanced formula with Phosphorylated Ethoxylate for getting better marine cleaning results with less acid.

Triple Action

ACTION 1: Excellent for renewal of fibreglass which is faded or stained from rust, exhaust fumes, environmental contamination etc.

ACTION 2: Ideal for removal of slime from hulls, anti fouling and running gear.

ACTION 3: When used on anti fouling, Marine Acid Wash etches the previous anti fouling to provide a surface which binds to the new anti fouling thus ensuring a better adhesion and longer life.

For action 1: Dilute Marine Acid Wash with up to 6 parts of water. Broom on to the hulls or decks. Allow to react for 2-3 minutes and rinse with high pressure water. For stubborn rust staining around metal fittings, detailing with a non scratching abrasive pad may be necessary.

For actions 2-3: Apply at a diluted rate of 1 part Marine Acid Wash with 10 parts water. Broom on, allow 2-3 minutes reaction time and rinse with high pressure water. A reapplication after all slime and foreign matter is removed is recommended to etch the surface prior to applying anti fouling.

Finish off with Stainless Steel Sentry

Marine Acid Wash is a perfect companion product of Cyndan’s Stainless Steel Sentry.

Stainless Steel Sentry will provide a long term protection to all marine grade stainless steel, protecting it from unsightly tea staining and rust.


  • Advanced triple action formulation
  • Antifouling cleaning & etching solution
  • Effective fibreglass boat cleaner
  • Contains phosphorylated ethoxylate for better results with less acid

Ideal for:

  • Boat hull cleaning
  • Faded or rust stained fibreglass
  • Slime removal
  • Anti fouling
  • Safe Use - RED Code - Dangerous Goods: Only those personnel trained in the handling and storage of chemicals should use these products as they require the use of protective/safety gear when used and must be stored according to the manufacturer’s directions for safe storage.
Product added in cart.